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KR101223267B1 - A vacuum chamber for byte tip heat-treatment and the manufacturing method - Google Patents

A vacuum chamber for byte tip heat-treatment and the manufacturing method Download PDF

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Publication number
KR101223267B1
KR101223267B1 KR1020120080419A KR20120080419A KR101223267B1 KR 101223267 B1 KR101223267 B1 KR 101223267B1 KR 1020120080419 A KR1020120080419 A KR 1020120080419A KR 20120080419 A KR20120080419 A KR 20120080419A KR 101223267 B1 KR101223267 B1 KR 101223267B1
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South Korea
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vacuum chamber
weight
chamber body
heat treatment
welding
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KR1020120080419A
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Korean (ko)
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최동성
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(주) 대진에프엠씨
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00Centrifugal casting; Casting by using centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14Cutting tools of which the bits or tips or cutting inserts are of special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34Methods of heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

본 발명은 바이트 팁 열처리용 진공챔버 및 그 제조방법에 관한 것으로, 그 목적은 진공챔버용몸체를 철과 크롬 그리고 니켈을 포함한 복합혼합물을 이용하여 원심주조법으로 제조함으로써, 진공 열처리시 진공챔버용몸체의 변형이 발생되지 않고 아울러 진공챔버용몸체의 사용수명을 연장시킬 수 있어 상기한 여러 문제점을 해소할 수 있도록 하는 것에 있으며, 이러한 목적은 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 고온으로 진공 열처리하기 위한 열처리용 진공챔버에 있어서, 철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 용접으로 인한 이음매 없는 단일체의 원통형 단면 형상을 갖도록 원심주조법으로 제조하여 구비되는 진공챔버용몸체와, 상기 진공챔버용몸체의 일단을 막음하도록 용접으로 일단이 고정 연결되어 구비되는 진공챔버용캡과, 상기 진공챔버용몸체의 타단을 중앙부로 삽입시켜 용접으로 용접 연결되어 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통되어 구비되는 진공챔버용플랜지부를 포함하여 이루어진 바이트 팁 열처리용 진공챔버 및 그 제조방법에 의해 달성된다.The present invention relates to a vacuum chamber for bite tip heat treatment and a method for manufacturing the same, the object of which is to manufacture a vacuum chamber body by centrifugal casting method using a composite mixture containing iron, chromium and nickel, so that the vacuum chamber body during vacuum heat treatment. It is possible to solve the above-mentioned problems because the deformation of the vacuum chamber body can be extended and the service life of the vacuum chamber body can be solved. In the vacuum chamber for heat treatment for vacuum heat treatment, a composite mixture including iron (Fe), chromium (Cr) and nickel (Ni) is manufactured by centrifugal casting to have a seamless cylindrical cross-sectional shape by welding. One end is fixedly connected by welding to prevent one end of the vacuum chamber body and the vacuum chamber body provided A bite including a vacuum chamber cap and a vacuum chamber flange which is penetrated through the center portion so that the other end of the vacuum chamber body is inserted into the center portion and welded and welded to install the opening / closing door for the vacuum chamber. It is achieved by a vacuum chamber for tip heat treatment and a method of manufacturing the same.

Description

바이트 팁 열처리용 진공챔버 및 그 제조방법{A vacuum chamber for byte tip heat-treatment and the manufacturing method}A vacuum chamber for byte tip heat-treatment and the manufacturing method

본 발명은 바이트 팁 열처리용 진공챔버 및 그 제조방법에 관한 것으로서, 보다 상세하게는 바이트 팁을 열처리하기 위한 진공챔버용몸체를 철과 크롬 그리고 니켈을 포함한 복합혼합물을 이용하여 원심주조법으로 제조함으로써, 진공 열처리시 진공챔버의 변형이 발생되지 않고 아울러 진공챔버의 사용수명을 연장시킬 수 있도록 한 바이트 팁 열처리용 진공챔버 및 그 제조방법에 관한 것이다.
The present invention relates to a vacuum chamber for bite tip heat treatment and a method of manufacturing the same, and more particularly, by manufacturing a body for vacuum chamber for heat treating the bite tip by centrifugal casting using a composite mixture containing iron, chromium and nickel, The present invention relates to a vacuum chamber for bite tip heat treatment and a method of manufacturing the same so that deformation of the vacuum chamber does not occur during the vacuum heat treatment and the life of the vacuum chamber can be extended.

일반적으로 회전하는 물체의 표면을 절삭 가공하기 위해서는 바이트의 일단에 용접 또는 나사결합된 팁을 이용하게 된다.In general, to cut a surface of a rotating object, a tip welded or screwed to one end of the bite is used.

상기한 바와 같이 바이트의 팁은 회전하는 물체의 표면을 절삭 가공하여야 하기 때문에 목적하는 경도와 강도를 갖는 것이 매우 중요한 바, 상기한 팁은 진공챔버내에서 고온 즉, 1,100℃의 온도로 진공 열처리시켜 제조된다.As described above, since the tip of the bite has to cut the surface of the rotating object, it is very important to have a desired hardness and strength. The tip is vacuum-treated at a high temperature, that is, 1,100 ° C., in a vacuum chamber. Are manufactured.

이러한 종래의 일반적인 진공챔버의 경우 챔버 내부의 공기를 거의 완전히 제거하므로, 내부압력은 0(Zero)기압에 가까워지므로 챔버 내외부의 압력차이는 대기압인 약 1kgf/㎠이 되는데, 진공챔버가 대형화되면 이 대기압에 의한 하중이 엄청나게 작용한다.In the case of such a conventional vacuum chamber, since the air inside the chamber is almost completely removed, the internal pressure is close to zero pressure, so the pressure difference inside and outside the chamber is about 1 kgf / cm2, which is atmospheric pressure. Atmospheric pressure acts tremendously.

진공챔버가 이와 같이 엄청난 외압을 견디려면 챔버의 구조가 큰 압력을 견딜 수 있는 특수한 구조를 가져야 한다. 또한 진공챔버는 내부의 진공도를 유지하기 위하여 완벽한 밀폐구조를 가져야 한다.In order for the vacuum chamber to withstand such a great external pressure, the structure of the chamber must have a special structure that can withstand the large pressure. In addition, the vacuum chamber should have a perfect sealed structure to maintain the degree of vacuum inside.

과거에는 이와 같이 큰 외압을 견딜 수 있는 밀폐구조를 가진 진공챔버를 제작하는 방법으로는 알루미늄 등의 금속블록의 내부를 절삭해 내어 제작하는 방법을 취하였다. In the past, as a method of manufacturing a vacuum chamber having a sealed structure capable of withstanding such a large external pressure, a method of cutting the inside of a metal block such as aluminum was taken.

그러나 이와 같은 절삭가공 방법의 경우 소재 블록의 크기에 제한이 있어서 일정 크기 이상의 대형 진공챔버를 제작할 수 없고, 절삭가공에 많은 비용과 시간이 소요될 뿐만 아니라 재료의 낭비도 아주 크다.However, in the case of such a cutting method, there is a limitation in the size of the material block, so that a large vacuum chamber of a certain size or more cannot be manufactured, and the cutting process is not only expensive and time consuming, but also wastes materials.

상기와 같은 절삭가공에 의한 진공챔버의 제작상의 문제점을 개선하기 위하여 특허출원번호 10-2008-0057303호에 기재된 바와 같이 두꺼운 금속판을 용접하여 진공챔버를 제작하는 방법이 시도되고 있다. In order to improve the manufacturing problems of the vacuum chamber by the cutting process as described above, a method of manufacturing a vacuum chamber by welding a thick metal plate as described in Patent Application No. 10-2008-0057303 has been tried.

그러나, 상기와 같은 용접방법에 의해 진공챔버를 제작할 경우에는 통상적인 용접에 의한 제작방법으로는 상기한 바와 같은 진공챔버의 기본적인 요구조건인 구조강도와 기밀성을 달성할 수 없다. However, in the case of manufacturing the vacuum chamber by the above welding method, the structural strength and airtightness, which are basic requirements of the vacuum chamber as described above, cannot be achieved by the conventional welding method.

또한, 상기와 같은 용접방법에 의해 진공챔버를 제작할 경우, 용접시 가한 열에 의하여 진공챔버의 열변형이 크게 일어나 용접 부위에서 찌그러짐이 발생되어 5개월 내지 6개월 단위로 주기적으로 교체하여야 하므로, 그로 인해 진공챔버의 교체비용이 많이 소요될 수 밖에 없는 문제점이 있었다.In addition, when the vacuum chamber is manufactured by the welding method as described above, thermal deformation of the vacuum chamber occurs due to the heat applied during welding, so that distortion occurs at the welded portion, and thus, it is necessary to replace it periodically every 5 to 6 months. There was a problem that the replacement cost of the vacuum chamber must take a lot.

그리고, 상기와 같은 용접방법에 의해 제작된 진공챔버를 이용하여 바이트의 팁을 진공 열처리할 경우, 진공챔버의 열변형에 따른 팁측으로 침투되는 열이 균일하지 않게 되어 결국 목적하는 경도와 강도를 갖는 팁을 얻을 수 없는 문제점이 있었다.
In addition, when vacuum-heating the tip of the bite using the vacuum chamber manufactured by the welding method as described above, the heat penetrated to the tip side according to the thermal deformation of the vacuum chamber is not uniform, and thus has the desired hardness and strength. There was a problem that could not be obtained.

특허출원번호 10-2008-0057303호, 출원일자;2008년6월18일Patent Application No. 10-2008-0057303, filed date; June 18, 2008 발명의 명칭;진공챔버의 용접부 결합구조Name of invention; Welded joint structure of vacuum chamber

이에, 본 발명은 상술한 문제점을 해소하기 위해 안출된 것으로서, 진공챔버용몸체를 철과 크롬 그리고 니켈을 포함한 복합혼합물을 이용하여 원심주조법으로 제조함으로써, 진공 열처리시 진공챔버용몸체의 변형이 발생되지 않고 아울러 진공챔버용몸체의 사용수명을 연장시킬 수 있어 상기한 여러 문제점을 해소할 수 있도록 한 바이트 팁 열처리용 진공챔버 및 그 제조방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above-described problems, by manufacturing the vacuum chamber body by a centrifugal casting method using a composite mixture containing iron, chromium and nickel, deformation of the vacuum chamber body occurs during vacuum heat treatment In addition, the object of the present invention is to provide a vacuum chamber for bite tip heat treatment and a method of manufacturing the same, which can extend the service life of the vacuum chamber body to solve the above problems.

본 발명의 다른 목적들은 기술이 진행되면서 명확해질 것이다.
Other objects of the present invention will become apparent as the description proceeds.

상술한 목적을 달성하기 위한 본 발명은, 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 고온으로 진공 열처리하기 위한 열처리용 진공챔버에 있어서, 철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 용접으로 인한 이음매 없는 단일체의 원통형 단면 형상을 갖도록 원심주조법으로 제조하여 구비되는 진공챔버용몸체와, 상기 진공챔버용몸체의 일단을 막음하도록 용접으로 일단이 고정 연결되어 구비되는 진공챔버용캡과, 상기 진공챔버용몸체의 타단을 중앙부로 삽입시켜 용접으로 연결되어 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통되어 구비되는 진공챔버용플랜지부를 포함하여 이루어진 것을 특징으로 한다.The present invention for achieving the above object, in the vacuum chamber for heat treatment to vacuum heat treatment the bite tip for cutting the surface of the rotating object at a high temperature, iron (Fe) and chromium (Cr) and nickel (Ni And a vacuum chamber body manufactured and manufactured by centrifugal casting so as to have a seamless single body cylindrical cross-sectional shape due to welding, and one end is fixedly connected by welding so as to prevent one end of the vacuum chamber body. And a vacuum chamber flange provided through the central portion so that the vacuum chamber cap and the other end of the vacuum chamber body are inserted into the center portion and connected by welding to install the opening / closing door for the vacuum chamber. It is done.

여기서, 상기한 복합혼합물은 진공챔버용몸체를 형성하기 위한 철(Fe)35중량%~45중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)25중량%~30중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)28중량%~32중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량%~2중량% 그리고 나머지 불순물1중량%로 이루어진 것을 특징으로 한다.Here, the composite mixture is 35% by weight to 45% by weight of iron (Fe) for forming the body for the vacuum chamber, 25% by weight to 30% by weight of chromium (Cr) so that deformation does not occur at high temperatures, and deformation at high temperatures 28% by weight to 32% by weight of nickel (Ni), and 1% by weight of tungsten (W) to have heat resistance, abrasion resistance, and corrosion resistance so as not to occur, and to prevent the vacuum chamber body from being easily destroyed by an external impact. It is characterized by consisting of 2% by weight and 1% by weight of the remaining impurities.

한편, 상술한 목적을 달성하기 위한 또 다른 본 발명은, 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 고온으로 진공 열처리하기 위한 열처리용 진공챔버의 제조방법에 있어서, 철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 제조하는 단계와, 상기 단계에 의해 제조된 복합혼합물을 용융시켜 원심주조장치를 통하여 용접에 의해 이음매없는 진공챔버용몸체를 제조하는 단계와, 상기 단계에 의해 제조된 진공챔버용몸체의 일단을 막음시키도록 반구형상의 진공챔버용캡을 용접으로 고정 연결시키는 단계와, 상기 단계에 의해 일단에 반구형상의 진공챔버용캡이 용접 연결된 진공챔버용몸체의 타단에 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통된 진공챔버용플랜지부를 용접에 의해 고정 연결시키는 단계를 포함하여 이루어진 것을 특징으로 한다.On the other hand, another invention for achieving the above object, in the manufacturing method of the vacuum chamber for heat treatment for vacuum heat treatment of the bite tip for cutting the surface of the rotating object to a high temperature, iron (Fe) and chromium (Cr) and nickel (Ni) mixed to produce a mixed mixture, and the composite mixture prepared by the step of melting a vacuum chamber body by welding through a centrifugal casting apparatus for producing a body And fixedly connecting the hemispherical vacuum chamber cap by welding so as to prevent one end of the vacuum chamber body manufactured by the above step, and the vacuum chamber body by which the hemispherical vacuum chamber cap is welded to one end by the step. In order to install the opening and closing door for the vacuum chamber at the other end of the central portion includes a step of fixing the perforated vacuum chamber flange by welding And it characterized in that formed.

또한, 상기한 진공챔버용캡을 진공챔버용몸체의 일단에 용접으로 고정 연결시키기 위한 단계 전에, 복합혼합물로 상기 진공챔버용몸체를 원심주조법으로 제조하는 단계에 의해 제조된 진공챔버용몸체의 내주면을 균일하게 하도록 볼링가공으로 면가공하는 단계를 더 포함하여 구성된 것을 특징으로 한다.
Further, before the step of fixedly connecting the vacuum chamber cap to one end of the vacuum chamber body by welding, the inner peripheral surface of the vacuum chamber body manufactured by the step of manufacturing the vacuum chamber body by a centrifugal casting method with a composite mixture It is characterized in that it further comprises the step of surface processing to bowling process to make uniform.

상기한 바와 같이 본 발명에 따른 바이트 팁 열처리용 진공챔버 및 그 제조방법에 따르면, 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 1,000℃~1,200℃의 고온으로 진공 열처리하기 위한 열처리용 진공챔버의 진공챔버용몸체를 철과 크롬 그리고 니켈을 포함한 복합혼합물을 이용하여 원심주조법으로 제조함으로써, 진공 열처리시 용접에 의해 이음매가 없어 진공챔버용몸체의 변형이 발생되지 않고 아울러 진공챔버용몸체의 사용수명을 연장시킬 수 있어 결국 비용을 절감시킬 수 있는 효과가 있다.
As described above, according to the vacuum chamber for the bite tip heat treatment according to the present invention and a manufacturing method thereof, the vacuum chamber for heat treatment for vacuum heat treatment of the bite tip for cutting the surface of the rotating object to a high temperature of 1,000 ℃ ~ 1,200 ℃ The vacuum chamber body is manufactured by centrifugal casting method using a composite mixture containing iron, chromium and nickel, and there is no seam by welding during vacuum heat treatment, so that the deformation of the vacuum chamber body does not occur, and the vacuum chamber body is used. It can extend its lifespan, resulting in cost savings.

도 1은 본 발명에 따른 바이트 팁 열처리용 진공챔버를 도시한 도면이다.
도 2는 본 발명에 따른 바이트 팁 열처리용 진공챔버의 제조방법을 설명하기 위한 공정도이다.
1 is a view showing a vacuum chamber for bite tip heat treatment according to the present invention.
2 is a process chart for explaining a method for manufacturing a vacuum chamber for bite tip heat treatment according to the present invention.

이하에서는, 본 발명에 따른 바이트 팁 열처리용 진공챔버 및 그 제조방법의 일실시예를 들어 상세하게 설명한다.Hereinafter, an embodiment of a vacuum chamber for bite tip heat treatment according to the present invention and a manufacturing method thereof will be described in detail.

우선, 도면들 중, 동일한 구성요소 또는 부품들은 가능한 한 동일한 참조부호를 나타내고 있음에 유의하여야 한다. 본 발명을 설명함에 있어, 관련된 공지기능 혹은 구성에 대한 구체적인 설명은 발명의 요지를 모호하지 않게 하기 위하여 생략한다. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

도시된 바와 같이 본 발명에 따른 바이트 팁 열처리용 진공챔버(100)는 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 1,000℃~1,200℃의 고온으로 진공 열처리하기 위한 열처리용 진공챔버의 진공챔버용몸체를 철과 크롬 그리고 니켈을 포함한 복합혼합물을 이용하여 원심주조법으로 제조함으로써, 진공 열처리시 용접에 의해 이음매가 없어 진공챔버용몸체의 변형이 발생되지 않고 아울러 진공챔버용몸체의 사용수명을 연장시킬 수 있도록 구비된다.As shown, the bite tip heat treatment vacuum chamber 100 according to the present invention is a vacuum chamber of the heat treatment vacuum chamber for vacuum heat treatment of the bite tip for cutting the surface of the rotating object to a high temperature of 1,000 ℃ ~ 1,200 ℃ The body is manufactured by centrifugal casting method using a composite mixture containing iron, chromium and nickel, so there is no seam by welding during vacuum heat treatment, so that the deformation of the body for the vacuum chamber does not occur and the service life of the body for the vacuum chamber is extended. It is provided to be.

즉, 상기한 본 발명에 따른 바이트 팁 열처리용 진공챔버(100)는, 철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 용접으로 인한 이음매 없는 단일체의 원통형 단면 형상을 갖도록 원심주조법으로 제조하여 구비되는 진공챔버용몸체(110)와, 상기 진공챔버용몸체(110)의 일단을 막음하도록 용접으로 일단이 고정 연결되어 구비되는 진공챔버용캡(130)과, 상기 진공챔버용몸체(110)의 타단을 중앙부로 삽입시켜 용접으로 연결되어 진공챔버용 개폐도어(미도시함)를 설치할 수 있도록 중앙부에는 관통되어 구비되는 진공챔버용플랜지부(150)를 포함하여 이루어진다.In other words, the vacuum tip chamber for heat treatment of the bite tip according to the present invention described above, the cylindrical cross-section of a seamless unitary body due to welding the mixed mixture including iron (Fe), chromium (Cr) and nickel (Ni) The vacuum chamber body 110 is manufactured and provided by a centrifugal casting method to have a shape, and the vacuum chamber cap 130 is provided with one end fixedly connected by welding so as to prevent one end of the vacuum chamber body 110, and The other end of the vacuum chamber body 110 is inserted into the center portion to be connected by welding, so that the central portion is provided with a vacuum chamber flange 150 which is provided through the center portion so as to install the opening and closing door (not shown) for the vacuum chamber. .

또한, 상기한 복합혼합물은 진공챔버용몸체(110)를 형성하기 위한 철(Fe)35중량%~45중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)25중량%~30중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체(110)가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)28중량%~32중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량%~2중량% 그리고 나머지 불순물1중량%로 이루어진다.In addition, the composite mixture is 35% by weight to 45% by weight of iron (Fe) to form the body for vacuum chamber 110, 25% by weight to 30% by weight of chromium (Cr) so that deformation does not occur even at high temperatures, 28% by weight to 32% by weight of nickel (Ni) and tungsten (heat and abrasion resistance and corrosion resistance) to prevent deformation even at high temperatures and to prevent the vacuum chamber body 110 from being easily destroyed by an external impact. W) 1% to 2% by weight and the remaining 1% by weight impurities.

상기 불순물은 탄소(C), 규소(Si), 망간(Mn), 인(P), 황(S), 몰리브덴(Mo)으로 구성된다.The impurity is composed of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and molybdenum (Mo).

여기서, 상기한 복합혼합물에서 철(Fe)의 혼합량이 상기한 범위 즉, 35중량%~45중량%를 벗어 날 경우 크롬 또는 니켈의 혼합량이 상대적으로 많이 혼합거나 적게 혼합되므로 인해 진공챔버용몸체(110)로 제조됨에 따른 제조단가가 상승되거나 또는 외부충격에 의해 쉽게 파괴됨과 아울러 고열에 견딜 수 없게 되므로 상기한 범위 즉, 35중량%~45중량%로 혼합하는 것이 바람직하다.Here, when the mixed amount of iron (Fe) in the composite mixture is out of the above range, that is, 35% by weight to 45% by weight, because the mixed amount of chromium or nickel is mixed or mixed relatively less, the body for the vacuum chamber ( It is preferable to mix in the above range, that is, 35 wt% to 45 wt% because the manufacturing cost according to 110) is increased or it is easily destroyed by external impact and cannot withstand high heat.

또한, 상기한 복합혼합물에서 크롬(Cr)의 혼합량이 25중량% 이하로 혼합될 경우, 진공챔버용몸체(110)로 제조됨에 따른 고온의 열에 견디기 위해서는 상대적으로 고가의 니켈을 상기한 혼합량 이상으로 혼합하여야 하므로 제조단가가 상승되며, 30중량%이상으로 혼합할 경우, 상대적으로 니켈의 혼합량이 상기한 혼합량 이하로 혼합하게 되므로 인해 진공챔버용몸체(110)로 제조됨에 따른 외부충격에 의해 쉽게 파괴되므로 상기한 범위 즉, 25중량%~30중량%로 혼합하는 것이 바람직하다.In addition, when the mixed amount of chromium (Cr) in the composite mixture is mixed at 25% by weight or less, in order to withstand the high temperature heat produced by the vacuum chamber body 110, the relatively expensive nickel is more than the above mixing amount. The manufacturing cost is increased because it must be mixed, and when mixed at 30% by weight or more, since the relatively relatively mixed amount of nickel is mixed below the mixing amount, it is easily destroyed by the external impact due to the manufacture of the vacuum chamber body 110. Therefore, it is preferable to mix in the above range, that is, 25 to 30% by weight.

그리고, 상기한 복합혼합물에서 니켈(Ni)의 혼합량이 28중량% 이하로 혼합될 경우, 진공챔버용몸체(110)로 제조됨에 따른 고온의 열에 견디기 위해서는 상대적으로 상기한 혼합량 이상으로 크롬이 혼합되어야 하므로 진공챔버용몸체(110)로 제조됨에 따른 외부충격에 의해 쉽게 파괴되고, 니켈(Ni)의 혼합량이 32중량% 이상으로 혼합될 경우 고가의 니켈을 많이 혼합되게 되므로 진공챔버용몸체(110)의 제조에 따른 제조단가가 상승되므로 상기한 범위 즉, 28중량%~32중량%로 혼합하는 것이 바람직하다.
In addition, when the mixed amount of nickel (Ni) in the composite mixture is mixed at 28 wt% or less, the chromium should be mixed in a relatively higher amount than the above mixed amount in order to withstand the high temperature heat produced by the vacuum chamber body 110. Therefore, the vacuum chamber body 110 is easily destroyed by an external impact due to being manufactured, and when the mixing amount of nickel (Ni) is mixed at 32% by weight or more, a large amount of expensive nickel is mixed, so that the vacuum chamber body 110 is used. Since the manufacturing unit cost is increased according to the production of the above range, that is, it is preferable to mix in the 28% by weight to 32% by weight.

한편, 상기와 같이 구성된 바이트 팁 열처리용 진공챔버의 제조방법은 첨부된 도면 도 2에 도시된 바와 같이, 철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 제조하는 단계(S210)와, 상기 단계(S210)에 의해 제조된 복합혼합물을 용융시켜 원심주조장치를 통하여 용접에 의해 이음매없는 진공챔버용몸체(110)를 제조하는 단계(S220)와, 상기 단계(S220)에 의해 제조된 진공챔버용몸체(110)의 일단을 막음시키도록 반구형상의 진공챔버용캡(130)을 용접으로 고정 연결시키는 단계(S230)와, 상기 단계(S230)에 의해 일단에 반구형상의 진공챔버용캡(130)이 용접 연결된 진공챔버용몸체(110)의 타단에 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통된 진공챔버용플랜지부(150)를 용접에 의해 고정 연결시키는 단계(S240)를 포함하여 이루어진다.On the other hand, the manufacturing method of the vacuum tip heat treatment vacuum chamber configured as described above is as shown in Figure 2, to produce a composite mixture containing iron (Fe) and chromium (Cr) and nickel (Ni) (S220) and melting the composite mixture prepared by the step (S210) to produce a seamless vacuum chamber body 110 by welding through a centrifugal casting apparatus (S220) and the step ( (S230) fixedly connecting the hemispherical vacuum chamber cap 130 by welding so as to prevent one end of the vacuum chamber body 110 manufactured by S220, and the hemispherical shape at one end by the step (S230). The vacuum chamber cap 130 is fixed to connect the vacuum chamber flange 150 through the welded through the central portion so as to install the opening and closing door for the vacuum chamber on the other end of the vacuum chamber body 110 is welded (S240) )

또한, 상기한 진공챔버용캡을 진공챔버용몸체의 일단에 용접으로 고정 연결시키기 위한 단계(S230) 전에, 상기 진공챔버용몸체를 제조하는 단계(S220)에 의해 제조된 진공챔버용몸체의 내주면을 균일하게 하도록 볼링가공으로 면가공하는 단계(S221)를 더 포함하여 구성된다.In addition, before the step (S230) of fixing the vacuum chamber cap to one end of the vacuum chamber body by welding, the inner peripheral surface of the vacuum chamber body manufactured by the step of manufacturing the vacuum chamber body (S220) It is configured to further include the step (S221) of the surface processing by bowling processing to make uniform.

그리고 상기한 복합혼합물은 진공챔버용몸체(110)를 형성하기 위한 철(Fe)35중량%~45중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)25중량%~30중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체(110)가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)28중량%~32중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량%~2중량% 그리고 나머지 불순물1중량%로 이루어진다.And the composite mixture is 35% by weight to 45% by weight of iron (Fe) to form the body for vacuum chamber 110, 25% by weight to 30% by weight of chromium (Cr) so that deformation does not occur even at high temperatures, and high temperature 28 wt% to 32 wt% of nickel (Ni) and tungsten (W) to have heat resistance, abrasion resistance, and corrosion resistance to prevent deformation from occurring and to prevent the vacuum chamber body 110 from being easily destroyed by an external impact. ) 1% to 2% by weight and the remaining impurities 1% by weight.

상기 불순물은 탄소(C), 규소(Si), 망간(Mn), 인(P), 황(S), 몰리브덴(Mo)으로 구성된다.
The impurity is composed of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and molybdenum (Mo).

이와 같이 이루어진 본 발명에 따른 바이트 팁 열처리용 진공챔버를 제조하고자 할 경우에는 첨부된 도면 도 1 및 도 2에 도시된 바와 같이 먼저, 진공챔버의 진공챔버용몸체(110)를 제조하기 위한 복합혼합물을 제조한다.In order to manufacture a vacuum tip heat treatment vacuum chamber according to the present invention made as described above, as shown in the accompanying drawings 1 and 2, first, the composite mixture for manufacturing the vacuum chamber body 110 of the vacuum chamber To prepare.

즉, 철(Fe)40중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)28중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체(110)가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)30중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량% 그리고 나머지 탄소(C), 규소(Si), 망간(Mn), 인(P), 황(S), 몰리브덴(Mo)으로 구성된 불순물1중량%로 진공챔버용몸체를 제조하기 위한 복합혼합물을 제조하여 고속으로 회전하는 원심주조장치를 통하여 용접으로 이음매가 없는 진공챔버용몸체(110)를 제조한다.That is, 40% by weight of iron (Fe), 28% by weight of chromium (Cr) so that deformation does not occur at high temperatures, and deformation does not occur even at high temperatures, and the vacuum chamber body 110 is easily destroyed by external impact. 30% by weight of nickel (Ni), 1% by weight of tungsten (W) to prevent heat, and the rest of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), a composite chamber for producing a vacuum chamber body with 1% by weight of impurities composed of molybdenum (Mo) to produce a vacuum chamber body 110 by welding through a centrifugal casting device that rotates at high speed. Manufacture.

상기와 같이 진공챔버용몸체(110)가 제조되면, 원심주조법으로 진공챔버용몸체(110)를 제조할 때, 내주면에 요철 형태로 돌출된 부분을 면가공하도록 볼링가공으로 면가공을 한다.When the vacuum chamber body 110 is manufactured as described above, when the vacuum chamber body 110 is manufactured by centrifugal casting, the surface is processed by bowling so as to process the part protruding in the form of irregularities on the inner circumferential surface.

이와 같이 진공챔버용몸체(110)의 내주면을 면가공하게 되면, 상기 진공챔버용몸체(110)의 일단을 막음시키도록 반구형상으로 제조된 진공챔버용캡(130)을 용접으로 고정 연결시킨다.When the inner circumferential surface of the vacuum chamber body 110 is processed in this way, the vacuum chamber cap 130 manufactured in a hemispherical shape to block one end of the vacuum chamber body 110 is fixedly connected by welding.

상기와 같이 진공챔버용몸체(110)의 일단에 용접으로 진공챔버용캡(130)가 고정 연결되면, 진공챔버용몸체(110)의 타단에 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통된 진공챔버용플랜지부(150)를 용접에 의해 고정 연결시킨다.As described above, when the vacuum chamber cap 130 is fixedly connected to one end of the vacuum chamber body 110 by welding, the vacuum penetrates through the center portion so that the vacuum chamber opening and closing door may be installed at the other end of the vacuum chamber body 110. The flange 150 for the chamber is fixedly connected by welding.

이와 같이 진공챔버용몸체(110)의 일단과 타단에 진공챔버용캡(130)과 진공챔버용플랜지부(150)를 용접에 의해 각각 고정 연겨시키는 것에 의해 바이트 팁 열처리용 진공챔버(100)의 제조가 완료되며, 상기와 같이 제조된 바이트 팁 열처리용 진공챔버를 이용하여 바이트 팁을 진공 열처리하게 되면, 진공챔버용몸체(110)가 이음매 없이 제조되므로, 열이 균일하게 팁에 전달되어 진공 열처리시 불량률을 감소시킬 수 있고, 아울러 이음매 없이 진공챔버용몸체(110)가 제조됨으로 인해 팁의 진공 열처리시 열로 인한 진공챔버용몸체(110)의 열변형이 없어 장시간 사용할 수 있다.As described above, the vacuum chamber cap 130 and the vacuum chamber flange 150 are fixed to each other at one end and the other end of the vacuum chamber body 110 by welding to manufacture the vacuum tip chamber for bite tip heat treatment. When the heat treatment is performed by vacuuming the bite tip by using the vacuum tip heat treatment vacuum chamber prepared as described above, the vacuum chamber body 110 is manufactured seamlessly, heat is uniformly transferred to the tip during vacuum heat treatment Defect rate can be reduced, and also because the vacuum chamber body 110 is manufactured without a seam, there is no thermal deformation of the vacuum chamber body 110 due to heat during the vacuum heat treatment of the tip, so that it can be used for a long time.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어서 명백할 것이다.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

100 ; 바이트 팁 열처리용 진공챔버
110 ; 진공챔버용몸체
130 ; 진공챔버용캡
150 ; 진공챔버용플랜지부
100; Vacuum Chamber for Bite Tip Heat Treatment
110; Body for vacuum chamber
130; Vacuum Chamber Cap
150; Flange for vacuum chamber

Claims (5)

회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 고온으로 진공 열처리하기 위한 열처리용 진공챔버에 있어서,
철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 용접으로 인한 이음매 없는 단일체의 원통형 단면 형상을 갖도록 원심주조법으로 제조하여 구비되는 진공챔버용몸체(110)와;
상기 진공챔버용몸체(110)의 일단을 막음하도록 용접으로 일단이 고정 연결되어 구비되는 진공챔버용캡(130)과;
상기 진공챔버용몸체(110)의 타단을 중앙부로 삽입시켜 용접으로 연결되어 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통되어 구비되는 진공챔버용플랜지부(150)를 포함하되,
상기 복합혼합물은 진공챔버용몸체(110)를 형성하기 위한 철(Fe)35중량%~45중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)25중량%~30중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체(110)가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)28중량%~32중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량%~2중량% 그리고 나머지 불순물1중량% 이하로 이루어진 것을 특징으로 하는 바이트 팁 열처리용 진공챔버.
A vacuum chamber for heat treatment for vacuum-heating a bite tip for cutting a surface of a rotating object at a high temperature,
A vacuum chamber body 110 which is manufactured and manufactured by centrifugal casting method so that the composite mixture including iron (Fe), chromium (Cr) and nickel (Ni) has a seamless monolithic cylindrical cross-sectional shape due to welding;
A vacuum chamber cap 130 having one end fixedly connected by welding to prevent one end of the vacuum chamber body 110;
The other end of the vacuum chamber body 110 is inserted into the center portion is connected to the welding by the central portion so as to be installed through the central portion so as to install the opening and closing door for the vacuum chamber includes a vacuum chamber flange 150,
The composite mixture is 35% by weight to 45% by weight of iron (Fe) for forming the body for the vacuum chamber 110, 25% by weight to 30% by weight of chromium (Cr) so that deformation does not occur at high temperatures, and deformation at high temperatures To prevent this from happening and to prevent the vacuum chamber body 110 from being easily destroyed by an external impact, 28% by weight to 32% by weight of nickel (Ni), tungsten (W) 1 to have heat resistance, abrasion resistance, and corrosion resistance. A vacuum chamber for bite tip heat treatment, characterized in that consisting of up to 2% by weight and 1% by weight of the remaining impurities.
삭제delete 회전하는 물체의 표면을 절삭 가공하기 위한 바이트 팁을 고온으로 진공 열처리하기 위한 열처리용 진공챔버의 제조방법에 있어서,
철(Fe)과 크롬(Cr) 및 니켈(Ni)을 포함하여 혼합된 복합혼합물을 제조하는 단계(S210)와;
상기 단계(S210)에 의해 제조된 복합혼합물을 용융시켜 원심주조장치를 통하여 용접에 의해 이음매없는 진공챔버용몸체(110)를 제조하는 단계(S220)와;
상기 단계(S220)에 의해 제조된 진공챔버용몸체(110)의 일단을 막음시키도록 반구형상의 진공챔버용캡(130)을 용접으로 고정 연결시키는 단계(S230)와;
상기 단계(S230)에 의해 일단에 반구형상의 진공챔버용캡(130)이 용접 연결된 진공챔버용몸체(110)의 타단에 진공챔버용 개폐도어를 설치할 수 있도록 중앙부에는 관통된 진공챔버용플랜지부(150)를 용접에 의해 고정 연결시키는 단계(S240)를 포함하되,
상기 복합혼합물은 진공챔버용몸체(110)를 형성하기 위한 철(Fe)35중량%~45중량%와, 고온에서도 변형이 일어나지 않도록 크롬(Cr)25중량%~30중량%와, 고온에서도 변형이 일어나지 않도록 함과 아울러 외부충격에 의해 진공챔버용몸체(110)가 쉽게 파괴되는 것을 방지하도록 니켈(Ni)28중량%~32중량%와, 내열성과 내마모성 그리고 내부식성을 갖도록 텅스텐(W)1중량%~2중량% 그리고 나머지 불순물1중량% 이하로 이루어진 것을 특징으로 하는 바이트 팁 열처리용 진공챔버의 제조방법.
In the manufacturing method of the vacuum chamber for heat treatment for vacuum heat treatment of the bite tip for cutting the surface of the rotating object at a high temperature,
Preparing a mixed mixture including iron (Fe), chromium (Cr), and nickel (Ni) (S210);
Manufacturing a seamless vacuum chamber body (110) by welding through a centrifugal casting apparatus by melting the composite mixture prepared in the step (S210);
(S230) fixedly connecting the hemispherical vacuum chamber cap (130) by welding so as to block one end of the vacuum chamber body (110) manufactured by the step (S220);
By the step (S230) one end of the vacuum chamber cap 130 through which the hemispherical vacuum chamber cap 130 is welded to the central portion so that the vacuum chamber opening and closing door can be installed at the other end of the vacuum chamber body 110 connected by welding. Including a step of fixedly connecting by welding (S240),
The composite mixture is 35% by weight to 45% by weight of iron (Fe) for forming the body for the vacuum chamber 110, 25% by weight to 30% by weight of chromium (Cr) so that deformation does not occur at high temperatures, and deformation at high temperatures To prevent this from happening and to prevent the vacuum chamber body 110 from being easily destroyed by an external impact, 28% by weight to 32% by weight of nickel (Ni), tungsten (W) 1 to have heat resistance, abrasion resistance, and corrosion resistance. Method for producing a vacuum chamber for bite tip heat treatment, characterized in that consisting of up to 2% by weight and 1% by weight of the remaining impurities.
제3항에 있어서,
상기 진공챔버용캡(130)을 진공챔버용몸체(110)의 일단에 용접으로 고정 연결시키기 위한 단계(S230) 전에, 복합혼합물로 상기 진공챔버용몸체(110)를 원심주조법으로 제조하는 단계(S220)에 의해 제조된 진공챔버용몸체(110)의 내주면을 균일하게 하도록 볼링가공으로 면가공하는 단계(S221)를 더 포함하여 구성된 것을 특징으로 하는 바이트 팁 열처리용 진공챔버의 제조방법.
The method of claim 3,
Before the step (S230) of the vacuum chamber cap 130 is fixedly connected to one end of the vacuum chamber body 110 by welding, the step of manufacturing the vacuum chamber body 110 by a centrifugal casting method with a composite mixture (S220) Method of manufacturing a vacuum chamber for a bite tip heat treatment characterized in that it further comprises the step (S221) of the surface processing by bowling processing to make the inner circumferential surface of the vacuum chamber body (110) manufactured by the same.
삭제delete
KR1020120080419A 2012-07-24 2012-07-24 A vacuum chamber for byte tip heat-treatment and the manufacturing method KR101223267B1 (en)

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